DD is Convert and copy a file, write disk headers, boot records, create a boot floppy. dd can make an exact clone of an (unmounted) disk, this will include all blank space so the output destination must be at least as large as the input.

GUI for diskdump (dd). Harddrive clone and imaging tool.This is a open source Graphical User Interface for the Unix Command dd. You can easily select the Input- and Outputstream, so you can clone or image your Harddrive or Partition.Install gdiskdump on ubuntu 11.04 (Natty)

Download db package from here .Once you have deb package you need to install by double clicking on it.

Install gdiskdump on ubuntu Maverick Meerkat, Lucid Lynx

Download deb package from here . Once you have deb package you need to install by double clicking on it.